Display device, driving method of display device, and electronic apparatus

a display device and driving method technology, applied in the direction of electric digital data processing, instruments, computing, etc., can solve the problems of deteriorating contrast and occurrence of cross talk, affecting and the movement of charged particles may not be perfectly inhibited, so as to reduce the gate bias, the effect of suppressing undesirable movement of charged particles and improving the write speed of images

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a display device and driving method technology, applied in the direction of electric digital data processing, instruments, computing, etc., can solve the problems of deteriorating contrast and occurrence of cross talk, affecting and the movement of charged particles may not be perfectly inhibited, so as to reduce the gate bias, the effect of suppressing undesirable movement of charged particles and improving the write speed of images

US20080204435A1Inactive Publication Date: 2008-08-28E INK CORPORATION

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first embodiment

[0028]FIG. 1 is a block diagram showing an electrical structure of an electrophoresis device lo which is one embodiment of a display device of the invention. The electrophoresis device 100 according to this embodiment is an active matrix type electrophoresis display device employing organic thin film transistors (TFT) as pixel switching elements. The electrophoresis device 100 can be applied to a flexible electronic apparatus such as electronic paper.

[0029]The electrophoresis device 100 includes a plurality of scan lines 3a each extending in a row direction (horizontal direction), a plurality of data lines 6a each extending in a column direction (vertical direction), and a plurality of capacitor lines 3b each extending in parallel with the scan lines 3a. Every intersection of the scan lines 3a and the data lines 6a is provided with a pixel 60 which is the unit of display. The pixels 60 are arranged in the row direction and the column direction along the scan lines 3a and the data li...

second embodiment

[0052]FIG. 7 is a timing chart illustrating driving voltages of an electrophoresis device according to a second embodiment. FIG. 7 corresponds to FIG. 3 according to the first embodiment. This embodiment is different from the first embodiment only in the waveform of the driving signals but is the same as the first embodiment in the structure thereof.

[0053]As shown in FIG. 7, in a driving method according to this embodiment, each of the scan lines is scanned two times during a period of one frame (corresponding to 1 / 60 seconds, in the case of displaying 60 frames in one second). First of all, the first time of scan signals G1, G2, G3, . . . , Gi, Gi+1, Gi+2, . . . , and Gm are supplied to the first to m-th scan lines, and the first time of image signals S1, S2, . . . , Sj, Sj+1, Sj+2, . . . , and Sn are supplied to the first to n-th data lines at timings in synchronization with the timings of supply of the scan signals G1, G2, G3, . . . , Gi, Gi+1, Gi+2, . . . , and Gm. Next, the sec...

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Abstract

A display device includes a pixel electrode and a counter electrode facing each other, a plurality of charged particles disposed between the pixel electrode and the counter electrode, an organic transistor electrically connected to the pixel electrode, a data line electrically connected to the pixel electrode via the organic transistor, a data line driving circuit supplying an image signal to the data line, and a counter electrode driving circuit supplying a counter electrode driving signal containing a pulse signal having the same polarity as the image signal to the counter electrode.

Description

BACKGROUND[0001]1. Technical Field[0002]The present invention relates to a display device including an organic transistor, a driving method of a display device, and an electronic apparatus.[0003]2. Related Art[0004]Organic semiconductors are promising future semiconductors succeeding silicon and compound semiconductors and their wide application to various electronic apparatuses are expected. In particular, development of the organic semiconductors has led to realization of thin, light and flexible devices which can be freely bent and also to realization of production of electronic price label (information tag) that can enable individual products to be managed in wireless, so research and development on practical use of the organic semiconductors are progressing. For example, a flexible display represented by electronic paper can serve as an electronic apparatus which bears a part of ubiquitous society thanks to its advantages of the ability of shock absorption and the pliability wh...

Claims

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Application Information

Patent Timeline

28 Aug 2008

Publication

US20080204435A1

IPC: G09G5/00; G09G3/20

CPC: G09G3/344; G09G2380/02; G09G2320/0214; G09G2300/0876; G09G3/035

Inventors: MIYAMOTO, TSUTOMU